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Recent Advances in Hybrid Laser-Arc Welding of Thick Steel Plates

Product Number: MPWT19-15295

Author: Mohamed Wahba, Masami Mizutani, Seiji Katayama

Publication Date: 2019

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With the objective of reducing the number of welding passes in thick plate welding, hybrid laser-arc welding technique was utilized to one-pass weld 25mm thick steel plates. Butt joints were designed with a square groove and 2.5mm air gap. Either ceramic strip or submerged arc welding flux was used for joint backing. The joint gap was filled up with cut-wire particles of the same chemical compositions as those of the arc welding filler wire. Cut-wire particles were inserted to protect the backing material from direct interaction with the laser irradiation. Welding parameters were optimized to obtain full penetration joints without damaging the backing material. Square groove butt joints of 25mm thickness were successfully welded in one welding pass. Similarly, 50 mm thick square groove butt joints could be double-side welded

Products tagged with 'cut-wire'

Recent Advances in Hybrid Laser-Arc Welding of Thick Steel Plates

Association for Materials Protection and Performance